Question

Vishal covers a distance of 20 km in 30 min. If he covers half of the distance in 18 min, what should be his speed to cover the remaining distance and completes the whole journey in 30 min.

• A. 50 km/hr
• B. 55 km/hr
• C. 60 km/hr
• D. 65 km/hr

Answer 1

Answer:

A. 50 km/hr

Given: Vishal covers a distance of 20 km in 30 min he covers half of the distance in 18 min. Formula used: Speed = Distance/Time. Calculation: According to the question, Vishal covers a distance of 20 km in 30 min, he covers half of the distance in 18 min. Remaining distance left to the covered = 20 – 10 ⇒ 10 km Remaining time = 30 – 18 ⇒ 12 min Convert minutes into hours = 12 × 1/60 hours ⇒ 12/60 hours Speed = Distance/Time Speed = 10/(12/60) ⇒ 50 km/hr ∴ His speed to cover the remaining distance is 50 km/hr.